Home / 1,332,510.72-1,838,864.64-728,897.28

Finding the Fourth Proportional to 1,332,510.72, 1,838,864.64 and 728,897.28

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Solution

The fourth proportional to 1,332,510.72, 1,838,864.64 and 728,897.28 is: 1,005,878.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,510.72 : 1,838,864.64 = 728,897.28 : x
  2. Step 2: Convert to fraction form
    1,332,510.72/1,838,864.64 = 728,897.28/x
  3. Step 3: Cross multiply
    1,332,510.72x = 1,838,864.64 × 728,897.28
  4. Step 4: Simplify right side
    1,332,510.72x = 1,340,343,434,384.18
  5. Step 5: Solve for x
    x = 1,340,343,434,384.18/1,332,510.72
  6. Step 6: Final answer
    x = 1,005,878.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.